CVE-2023-20585

MediumCVSS 5.6/10Last modified Jun 17, 2026

Description

Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.

Metrics

CVSS 4.0 5.6/10

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-788

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
AMD	AMD EPYC™ 7003 Series Processors	—
AMD	AMD EPYC™ 9004 Series Processors	—
AMD	AMD EPYC™ Embedded 7003 Series Processors	—
AMD	AMD EPYC™ Embedded 9004 Series Processors	—

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html

Timeline

Published: Apr 16, 2026
Last modified: Jun 17, 2026
NVD status: Awaiting Analysis

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